This type of fan is commonly used on condenser motors because it moves high volumes of air in low static conditions:

A) Backward-curved centrifugal B) Tube axial
C) Propeller D) Forward-curved centrifugal


C

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Periodic cleaning is required on the _______________.

a. stack b. burner fuel lines c. bridgewall d. shock bank

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Special wells are often drilled in the center of the irrigation area to save costs

Indicate whether the statement is true or false.

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The shock that results from walking across a carpet and touching a doorknob is an example of a(n) _____ static charge.

A. nuisance B. useful

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The DOT-approved cylinder in which refrigerant may be recovered has a mechanism for shutting the recovery system off when it reaches approximately ____________________ full.

Fill in the blank(s) with the appropriate word(s).

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